Locomotive-boiler furnace.



i "Z533, N.

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the United"Saiesa smi a issiolent of Fl'vanscon, eoimy of CookT and iiiiiois, have invenied cer-; n new sei l iipio eiis Loooizioiveeesj of which the oiiowing is sosoiiioaili iy in'veaion reates to improvements in iooomozive boiier furnaces ami has speciali reis-renee -o refractory baos si eroi-.ies for #ne iebo'es of iooomotive boiiei"Q This appiication is division of my oopendiig agiplieation, Seal No. 666,337? flied December "i8, 191i..

The genemi objects of my iiweiition ae to provide an improved refieoioiy srch which may easily azi quickiy instaiiefi iii iocomoivs iireiaoxes; to' provide an arch which shall be comparatively light in weight ami or iow oost; to pso-vide an sich which n shali be easy to iepaii' and ms of Whic. may be readily i'emoved to a orti easy secess to the irebox sides and iue sheet; an. to provide an arch which in a practioai sense shall assist in oomminging, admixing, ami igniting the iirebox gases and. othei comi bustibies. l

My inveziion consists in the sevemi improvements, the various consrucions, snai the combinations and reiaiois of parts hereinaftei sei- 'forth and partiouaiiy pointed out in the appended claims; and wiii be readily understood upon reeience to the accompanying drawings,

in these drawings which form a, 'pari o this specification: Figure l is a iongiudiiial central seotionai View of the locomotive boiler re box and arch embodying my i11- Vention; Fig. 2 is a transveise *vetical sectional View of the re box on the mie "2-2 of Fig.

Fig. e is ,a pszspeotiveview 0i one ofthe side bricks.

I have illustrated my invention as embodied in the form of ascailed iront arch, the particulier function of which 1s so deiecttiie iie box gases asihey rise from the uei bed 'ooe them' to travei to ihe real end of the fire box instead of directly Eo the iues. This form of arch Riso assistswiii dis: tribuing the heet of combustion throughout adj aceniJ 'bebes liG.

l; Fig. 3 is a detail sectionai View K or the arch on the line 3-3 oi lig.` l; and

le@ Siijf @ci may oo passeci through fiile uei fiom. f

iocomoive boiier' re box, as shown,

Crown siiee, swear sheet A geste is piovieii in the lowes vomi; si? iire loi: ansi nes iea oiwarc. imm the fine sheet. The rear Sheet isprovidefi with o uei so? or opening S ami the fire box ioned 'within ifie sheii 9 of boiie', and empioy 'berein iaiig ascii buses 1G, the same fiom. iii@ iower poriioii' "she iue sii 'she opper portion of :ce-az s embodiment of my invention sirae.,

empioy four of these mises 1C.

i build my piei'erre form of sich of sw'o brick patterns or forms a and Z. The brieirs a form the cearei or main. portion of he arch sie suppoieci ai heiiends upon The bricks ae as rangeci between the wo outer tubes anti the .coi-responding side sheets of tile ire box. l

supper?, ieir outer eis upon sus or projeotions 52 which secure the side sheets of the fee box "beiow the piane occupied 'by the tubes 10, so ihm: can incline nhe bricks iiownwardy. @frange them. is downwarriy ami outwarciiy mcline posiiions and ioVide heir upper ende with sockets b1 wki'ch iii; upon 'the subes. As these biicks do sot siistinany great Weight, Ii make-their cheer-ends ielativeiy iiin and ani time enabi'e" to maketiese bricks of reiativeiy light weight. i prefer bo tepel' hem iii thickness fromiie this oue? ends to their thicker ieneeiifis, form rev ,sulting in a brisk which is suieieiniy strong With-'relatively lgge :recesses or pockets in their upper siesl-rwiiereby considerabiy llghisenein Weight, 'The arch, as thus constsueie, piesens s eenzmi mein portion which is substsaieiij' iw; the heigiii ,off wiieh dependen iiion the height-of the tubes upon which thesejsricks eistfand a side or wing portion depending downwardly from the side edges of the main arch to the side sheet, the result being that'v to this extent the space' beneath .the tubes is decreased and the space above the tubes. is increased. preferably make the bricksA o inwardly beveled upon their ends lwhereby they Contact with the tubes so 'tirait these bricks will depend between the "tubes to a certain. extent and wedgingly engage them. l also preferably makethe uplper faces of the bricks of such length-that #the upperedges of their adjacent ends contact with each other when -placed in position upon the tubes, that is, the upper faces of these Abricks are practically equal in length from center to center of the tubes l0. Pref-- ferably the upper edges the upper ends ci? 3.0 the side bricks i beveled to n itlitlfie adjacent ids of the brii4 o, and j contact therewith, thereby relieving the tubev tc some extent of the spreading or wedgiugsction of the main bricks, thereby assisting condition.

In order to provide a tight uioint between" the outer ends of the side bricks and the side sheets, l bevel the outer ends ot the side against the due sheet, the number of bricks.

ybeing determined by the number of tubes. complete this first transverse row by a. pair of vside bricks Z which l place in outwardly and downwardly inclined positions 'ugoon the outermost tubes 'and upon -oorrev spending lugs, then l place' another` trans,- verse row of the bricks extending from side .50 sheet to side sheet, `continuing the vbuilding 'of the archuntil I have an arch of suliicientv length to accomplish the desired results; v'.lhe downwardly inclined side or wing bricks are 'particularly useful in lire boxes, such as shown, wherein the main bricksa dofnot tend to severely spread the arch tubes', and consequently the side bricks may be Alight in weight. The forni oi' side bricks shown, each having a comparatively thin edgeabutting the side sheets, results in these bricks being relatively light and as they are inclined downwardly and outwardly,

in maintaining the arch in truev modem they provide the arch with edges which are low upon the side sheets.

As. 'many modifications ofniy invention will readily suggest themselves to one skilled inthe art,'l do not limit or confine in illustrated and described. 'f

Having thus described my invention, l

claim as new and desire to secure by Letters Patent:

1. A locomotive boiler firebox as de-- vmy invention tothe specific structures here Y scribed, in combination with two longitudi-` nall'y inclined water-circulating arch-tubes adjacent to opposite side sheets of the boit,-v

studs upon said side 'sheets substantially below respective tubes. and a row of downwardly' and outwardly.inclined refractory bricks between each tube and adjacent side sheet, each said brick having its inner end ceted upon the tube and its outer end supported by a said stud or studs.

3. locomotive boiler iirebon" as described, in combination .with two longitudinallyv inclined` water-circulating arch-tubes idjacent to opposite side sheets of the box, studs upon vsaid side sheets substantially below respective tubes, a row of downwardly and outwardly inclined refractory bricks ico between each said tubev and adjacent side' sheet, each said brick tapering toward its outer end and having its inner end socketed upon the tube and its `outer end sunported by a said Studer-studs, and a' refractory arch body upon and between said tubes.

4. A side brick for' locomotive arches,

composed of refractory material, having' one end socketed for support b v an" arch tube, tapered toward its otherv end and said other end being beveled for downwardly inclined abutment with a fire box side sheet, a'. e.,

having its end formed at' an" acute angle to its bottom. I

In testimony whereof, I have hereunto set my hand this 20th day of March, 1915, in

. the presence of two subscribing witnesses.

y CHARLES B. Moons. 

